security

4 tutorial series · 8 posts

Tutorial Series

GitHub Actions CI/CD

In this exhilarating first part of a ten-part series on GitHub Actions CI/CD, you embark on creating the "helloci" Python package. It features a simple yet powerful greeting function and a user-friendly CLI entry point. The journey begins with project setup, encapsulating best practices in Python packaging and laying the groundwork for automated tests. Get ready to transform your coding experience!

10 Parts · Feb 2026 Start Series →

pgmonkey

Alright, so here's the gist: You can get started with pgmonkey in under five minutes. Just set up your project folder, install pgmonkey, and create a YAML config file. After tweaking it for your database, test your connection and run a simple Python query. Easy peasy!

8 Parts · Feb 2026 Start Series →

WireGuard VPN

In this compelling guide to VPN networking basics, you'll discover the essential concepts that empower your online privacy. Learn about IP addresses, the crucial differences between public and private networks, subnet masks, and CIDR notation. Embrace the power of effective routing and understand the significance of ports and DNS within VPN configurations. Equip yourself with the knowledge needed to navigate upcoming VPN tutorials seamlessly!

4 Parts · Feb 2026 Start Series →

Linux PPA Packaging

Unlock the secrets of Launchpad key management with this guide. From GPG keys that authenticate your packages to SSH keys that secure your access, ensure your digital fortress is impenetrable. Misaligned keys mean blocked uploads! So, back them up, rotate them, and master your coding destiny before hackers do.

4 Parts · Feb 2026 Start Series →

Posts

OAuth 2.0 – In A Nutshell

What is OAuth 2.0 ? Did you know there are many different grant types? A grant type for each type of application you want to create? Come one, lets take a look...

Aug 21, 2023

Portable Laptop Pi-Hole and Unbound DNS resolver

Run Pi-Hole and Unbound locally on your own laptop so that you have a portable 'as secure as can be' internet browsing experience. DNS - just a modern telephone book.

Jan 29, 2023

VPN Kill Switch With Docker

You might have set up some great rules in your iptables to act as a kill switch, only to find out that on installing Docker and running some containers they completely override your rules. Fortunately the fix is easy. Let me show you how. 1. Required Reading I’m going to apply the fix to my...

Oct 4, 2022

OpenVPN: Create A Linux VPN iptables Killswitch

If your VPN connection drops your machine usually continues to connect to the internet leaking information. Let me show you how to make an iptables killswitch.

Oct 3, 2022

Secure Your Linux Laptop With iptables

Your linux powered laptop is open and vulnerable. Let's harden it a little with the linux iptables firewall. It's not that hard, honest... it is just a text file.

Sep 23, 2022

Pi-hole: A Portable Docker Laptop Solution

If you like the network-wide protection your home pi-hole provides against adverts, domains that are known phishing sites, or domains that are known to serve malware, then you are going to love finding out that you can have a local laptop install of pi-hole and take it with you where ever you go.

Sep 19, 2022

How To Clone A Git Repo With SSH Keys

A look at how to clone a Github repository using SSH key pairs, and guidance on how to handle multiple Github accounts on the same machine.

Aug 24, 2022

Generate SSH keys with ssh-keygen

A quick start guide to generate your own SSH public/private keypair. A look at generating both RSA and the more secure Elliptic Curve Ed25519 key type.

Aug 24, 2022